Cleaning is a Must for the Longevity of Your Larimar Jewelry For cleaning your Larimar silver jewelry, use a soft cloth to remove dust and impurities. You can also clean it with a few drops of mild soap and water and a soft brush. Avoid harsh chemicals and abrasives. You have to store your larimar earrings or larimar pendants in a cool, dry place away from sunlight to prevent tarnishing. Avoid exposing Larimar to prolonged sun exposure, temperatures over 37°C, and water-related activities like swimming. You have to remember one more thing that before going to bed or washing dishes you have to remove your larimar jewelry.